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PatchSiren cyber security CVE debrief

CVE-2026-5482 Responsive FileManager CVE debrief

CVE-2026-5482 is a critical vulnerability in Responsive FileManager, a project that is currently unmaintained. The vulnerability allows an unauthenticated attacker to upload files of any type and extension without restriction using the dialog.php endpoint, leading to Remote Code Execution (RCE). This vulnerability was found in the latest release (9.14.0) of the project. The CVSS score for this vulnerability is 9.3, indicating a critical severity.

Vendor
Responsive FileManager
Product
Responsive FileManager
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-06-16
Advisory published
2026-06-15
Advisory updated
2026-06-16

Who should care

Administrators and users of Responsive FileManager, especially those using version 9.14.0, should be aware of this vulnerability and take immediate action to mitigate the risk.

Technical summary

The vulnerability is caused by an unrestricted file upload feature in the dialog.php endpoint of Responsive FileManager. This allows an attacker to upload malicious files, potentially leading to RCE.

Defensive priority

High

Recommended defensive actions

  • Upgrade to a maintained version of Responsive FileManager, if available.
  • Implement proper file upload restrictions and validation.
  • Monitor for suspicious activity and potential exploitation attempts.

Evidence notes

The vulnerability was reported by [email protected] and is referenced in the CVE record. For more information, see resourceLinkAnnotations with id 'ref-4' and 'ref-5'.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-5482 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-5482

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-5482 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-5482

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.